81017786

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{112213}}^1$

素因数の和:112253

約数の個数: 12

約数和(自身を含む): 128260602

約数和(自身を除く): 47242816

約数列:

[1, 2, 19, 38, 361, 722, 112213, 224426, 2132047, 4264094, 40508893, 81017786]

約数ペア:

[(1, 81017786), (2, 40508893), (19, 4264094), (38, 2132047), (361, 224426), (722, 112213)]